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Importance of shade trees (Grevillea robusta) in the dispersal of forest tree species in managed tea plantations of southern Western Ghats, India

Published online by Cambridge University Press:  13 February 2012

H. C. Chetana  and
T. Ganesh
H. C. Chetana
Affiliation:
Ashoka Trust for Research in Ecology and the Environment (ATREE), Royal Enclave, Sriramapura, Jakkur Post, Bangalore-560 064, Karnataka, India
T. Ganesh*
Affiliation:
Ashoka Trust for Research in Ecology and the Environment (ATREE), Royal Enclave, Sriramapura, Jakkur Post, Bangalore-560 064, Karnataka, India
*
1Corresponding author. Email: chetanahc@yahoo.com
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Abstract:

Abandoned plantations of coffee, tea and other commercial crops offer opportunities for understanding ecological processes in modified forest ecosystems. Unlike tree plantations tea is maintained as a shrub with a continuous dense short canopy that precludes large-frugivore activity thereby limiting dispersal of forest species to such areas. In this study we determine how location and density of Grevillea robusta a shade tree in tea plantations and proximity of plantations to forests influences seed arrival from forests into the plantations. We also estimate the importance of dispersal modes in the colonization processes. We laid 10 × 10-m plots at three distance intervals from the forest edge in three different plantation types with varying shade tree densities. Within the plots we laid four 1× 1-m subplots at the corners of the plot. We estimated species richness, abundance and categorized the seeds into dispersal modes in these plots. Grevillea robusta increased species richness of seeds by three times and abundance of seeds by 3–30 times compared with plantations without them. Higher density of G. robusta increased seed input changed species composition and altered species dominance in the plantations. Distance to forests influenced seed arrival in plantations without G. robusta trees and plots 95 m from the forest did not have any seeds in them. No such effect was seen in plantations with G. robusta trees. Seeds dispersed by birds or a combination of birds and mammals contribute 30% of the seeds reaching the plantations with G. robusta and this was not influenced by distance from the forest. In plantations without G. robusta bird dispersal is restricted to 25 m from the forest edge. In general density of shade trees has a strong influence on seed arrival which can negate the forest proximity effect and enhance natural forest colonization.

Keywords

frugivoresseed dispersalshade treeteaWestern Ghats
Type
Research Article
Information
Journal of Tropical Ecology , Volume 28 , Issue 2 , March 2012 , pp. 187 - 197
Copyright
Copyright © Cambridge University Press 2012

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References

LITERATURE CITED

ANDERSON, M. J. 2001. A new method for non-parametric multivariate analysis of variance. Austral Ecology 26:32–46.Google Scholar
ARELLANO, L., FAVILA, M. E. & HUERTA, C. 2005. Diversity of dung and carrion beetles in a disturbed Mexican tropical montane cloud forest and on shade coffee plantations. Biodiversity and Conservation 14:601–615.CrossRefGoogle Scholar
ARMBRECHT, I., PERFECTO, I. & VANDERMEER, J. 2004. Enigmatic biodiversity correlations: ant diversity responds to diverse resources. Science 304:284–286.CrossRefGoogle ScholarPubMed
BARBOSA, C. E. DE A., BENATO, T., CAVALHEIRO, A. L. & TOREZAN, J. M. D. 2009. Diversity of regenerating plants in reforestations with Araucaria angustifolia (Bertol.) O. Kuntze of 12, 22, 35, and 43 years of age in Parana State, Brazil. Restoration Ecology 17:60–67.CrossRefGoogle Scholar
CHAPMAN, C. A. & CHAPMAN, L. J. 1999. Forest restoration in abandoned agricultural land: a case study from East Africa. Conservation Biology 13:1301–1311.CrossRefGoogle Scholar
CHARLES-DOMINIQUE, P. 1986. Inter-relations between frugivorous vertebrates and pioneer plants: Cecropia, birds and bats in French Guyana. Pp. 122–135 in Estrada, A. & Fleming, T. H (ed.). Frugivores and seed dispersal. Dr. W. Junk Publishers, Dordrecht.Google Scholar
CUBIÑA, A. & AIDE, T. M. 2001. The effect of distance from forest edge on seed rain and soil seed bank in a tropical pasture. Biotropica 33:260–267.CrossRefGoogle Scholar
DALLING, J. W. & HUBBELL, S. P. 2002. Seed size, growth rate and gap microsite conditions as determinants of recruitment success for pioneer species. Journal of Ecology 90:557–568.CrossRefGoogle Scholar
DATTA, A. & RAWAT, G. S. 2008. Dispersal modes and spatial patterns of tree species in a tropical forest in Arunachal Pradesh, northeast India. Tropical Conservation Science 1:163–185.CrossRefGoogle Scholar
DUNCAN, R. S. & CHAPMAN, C. A. 1999. Seed dispersal and potential forest succession in abandoned agriculture in tropical Africa. Ecological Applications 9:998–1008.CrossRefGoogle Scholar
GALINDO-GONZÁLEZ, J., GUEVARA, S. & SOSA, V. 2000. Bat- and bird-generated seed rains at isolated trees in pastures in a tropical rainforest. Conservation Biology 14:1693–1703.Google Scholar
GAMBLE, J. S. & FISCHER, C. E. C. 1915–1935. Flora of the Presidency of Madras. Parts I to XI. Secretary of State for India, London.CrossRefGoogle Scholar
GANESH, T., GANESAN, R., DEVY, M. S., DAVIDAR, P. & BAWA, K. S. 1996. Assessment of plant biodiversity at a mid-elevation evergreen forest of Kalakad-Mundanthurai Tiger Reserve, Western Ghats, India. Current Science 71:379–392.Google Scholar
GANESH, T. & DAVIDAR, P. 1997. Flowering phenology and flower predation of Cullenia exarillata (Bombacaceae) by arboreal vertebrates in Western Ghats, India. Journal of Tropical Ecology 13:459–468.CrossRefGoogle Scholar
GANESH, T. & DAVIDAR, P. 1999. Fruit biomass and relative abundance of frugivores in a rain forest of southern Western Ghats, India. Journal of Tropical Ecology 15:399–413.CrossRefGoogle Scholar
GANESH, T. & DAVIDAR, P. 2001. Dispersal modes of tree species in the wet forests of southern Western Ghats. Current Science 80:394–399.Google Scholar
GANESH, T. & DAVIDAR, P. 2005. Fruiting phenology and pre-dispersal seed predation in a rainforest in southern Western Ghats, India. Pp.139–154 in Dew, J. L. & Boubli, J. P. (eds.). Tropical fruits and frugivores: the search for strong interactors. Springer, Dordrecht.CrossRefGoogle Scholar
GORCHOV, D. L., CORNEJO, F., ASCORRA, C. & JARAMILLO, M. 1993. The role of seed dispersal in the natural regeneration of rain forest after strip-cutting in the Peruvian Amazon. Vegetatio 107/108;339–349.CrossRefGoogle Scholar
GOTELLI, N. J. & COLWELL, R. K. 2001. Quantifying biodiversity: procedures and pitfalls in the measurement and comparison of species richness. Ecology Letters 4:379–391.CrossRefGoogle Scholar
GUARIGUATA, M. R., RHEINGANS, R. & MONTAGNINI, F. 1995. Early woody invasion under tree plantations in Costa Rica: implications for forest restoration. Restoration Ecology 3:252–260.CrossRefGoogle Scholar
GUEVARA, S., LABORDE, J. & SÁNCHEZ-RIOS, G. 2004. Rain forest regeneration beneath the canopy of fig trees isolated in pastures of Los Tuxtlas, Mexico. Biotropica 36:99–108.Google Scholar
HARTLEY, M. J. 2002. Rationale and methods for conserving biodiversity in plantation forests. Forest Ecology and Management 155:81–95.CrossRefGoogle Scholar
HARVEY, C. A. 2000. Windbreaks enhance seed dispersal into agricultural landscapes in Monteverde, Costa Rica. Ecological Applications 10:155–173.CrossRefGoogle Scholar
HOLL, K. D. 1998. Do bird perching structures elevate seed rain and seedling establishment in abandoned tropical pasture? Restoration Ecology 6:253–261.CrossRefGoogle Scholar
HOLL, K. D. 2002. Effects of shrubs on tree seedling establishment in an abandoned tropical pasture. Journal of Ecology 90:179–187.CrossRefGoogle Scholar
HOLL, K. D., LOIK, M. E., LIN, E. H. V. & SAMUELS, I. A. 2000. Tropical montane forest restoration in Costa Rica: overcoming barriers to dispersal and establishment. Restoration Ecology 8:339–349.CrossRefGoogle Scholar
HUNTER, M. L. 1990. Wildlife, forests, and forestry: principles of managing forests for biological diversity. Prentice-Hall, Englewood Cliffs. 370 pp.Google Scholar
JANZEN, D. H. 1970. Herbivores and the number of tree species in tropical forest. American Naturalist 104:501–528.CrossRefGoogle Scholar
KOMAR, O. 2006. Ecology and conservation of birds in coffee plantations: a critical review. Bird Conservation International 16:1–23.CrossRefGoogle Scholar
LUGO, A. E. 1997. The apparent paradox of reestablishing species richness on degraded lands with tree monocultures. Forest Ecology & Management 99:9–19.CrossRefGoogle Scholar
MARTINEZ-GARZA, C., FLORES-PALACIOS, A., DE LA PENA-DOMENE, M. & HOWE, H. F. 2009. Seed rain in a tropical agricultural landscape. Journal of Tropical Ecology 25:541–550.CrossRefGoogle Scholar
McARDLE, B. H. & ANDERSON, M. J. 2001. Fitting multivariate models to community 3 data: a comment on distance-based redundancy analysis. Ecology 82:290–297.CrossRefGoogle Scholar
McCLANAHAN, T. R. & WOLFE, R. W. 1993. Accelerating forest succession in a fragmented landscape: the role of birds and perches. Conservation Biology 7:279–288.CrossRefGoogle Scholar
MEDINA, A., HARVEY, C. A., MERLO, D. S., VILCHEZ, S. & HERNÁNDEZ, B. 2007. Bat diversity and movement in an agricultural landscape in Matiguás, Nicaragua. Biotropica 39:120–128.CrossRefGoogle Scholar
MYERS, N., MITTERMEIER, R. A., MITTERMEIER, C. G., DA FONSECA, G. A. B. & KENT, J. 2000. Biodiversity hotspots for conservation priorities. Nature 403:853–858.CrossRefGoogle ScholarPubMed
NORTON, D. A., 1998. Indigenous biodiversity conservation and plantation forestry: options for the future. New Zealand Journal of Forestry 43:34–39.Google Scholar
PARROTTA, J. A., TURNBULL, J. & JONES, N. 1997. Catalyzing native forest regeneration on degraded tropical lands. Forest Ecology and Management 99:1–7.CrossRefGoogle Scholar
PINEDA, E., MORENO, C., ESCOBAR, F. & HALFFTER, G. 2005. Frog, bat, and dung beetle diversity in the cloud forest and coffee agroecosystems of Veracruz, Mexico. Conservation Biology 19:400–410.CrossRefGoogle Scholar
RAMAN, T. R. S. 2006. Effects of habitat structure and adjacent habitats on birds in tropical rainforest fragments and shaded plantations in the Western Ghats, India. Biodiversity and Conservation 15:1577–1607.CrossRefGoogle Scholar
RAMAN, T. R. S., MUDAPPA, D. & KAPOOR, V. 2009. Restoring rainforest fragments: survival of mixed-native species seedling under contrasting site conditions in the Western Ghats, India. Restoration Ecology 17:137–147.CrossRefGoogle Scholar
RAMESH, B. R., MENON, S. & BAWA, K. S. 1997. A vegetation based approach to biodiversity gap analysis in the Agastyamalai region, Western Ghats, India. Ambio 26:529–536.Google Scholar
RICKETTS, T. H., DAILY, G. C., EHRLICH, P. R. & FAY, J. P. 2001. Countryside biogeography of moths in a fragmented landscape: biodiversity in native and agricultural habitats. Conservation Biology 15:378–388.CrossRefGoogle Scholar
ROSSI, J. 2011. rich: an R package to analyse species richness. Diversity 3:112–120.CrossRefGoogle Scholar
TEEGALAPALLI, K., HIREMATH, A. J. & JATHANNA, D. 2008. The role of perches in accelerating seed arrival in human-abandoned clearings within Bhadra Tiger reserve, India. Journal of the Bombay Natural History Society 105:315–322.Google Scholar
TEEGALAPALLI, K., HIREMATH, A. J. & JATHANNA, D. 2010. Patterns of seed rain and seedling regeneration in abandoned agricultural clearings in a seasonally dry tropical forest in India. Journal of Tropical Ecology 26:25–33.CrossRefGoogle Scholar
THOMAS, D. W., CLOUTIER, D., PROVENCHER, M. & HOULE, C. 1988. The shade of bird- and bat-generated seed shadows around a tropical fruiting tree. Biotropica 20:347–348.CrossRefGoogle Scholar
VAN TONGEREN, O. F. R. 1987. Cluster analysis. Pp. 174–212 in Jongman, R. H. G., ter Braak, C. J. F. & van Tongeren, O. F. R. (eds.). Data analysis in community and landscape ecology. Pudoc, Wageningen.Google Scholar
WILLIAMS-GUILLÉN, K., McCANN, C., MARTÍNEZ SÁNCHEZ, J. C. & KOONTZ, F. 2006. Resource availability and habitat use by mantled howling monkeys in a Nicaraguan coffee plantation: can agroforests serve as core habitat for a forest mammal? Animal Conservation 9:331–338.CrossRefGoogle Scholar
ZANINI, L. & GANADE, G. 2005. Restoration of Araucaria forest: the role of perches, pioneer vegetation, and soil fertility. Restoration Ecology 13:507–514.CrossRefGoogle Scholar
ZAR, J. H. 1999. Biostatistical analysis. (Fourth edition). Prentice-Hall International Editions, New Jersey. 663 pp.Google Scholar